Adjustable crown-templet.



T. K. LEGARE.

ADJUSTABLE GROWN TEMPLET:

APPLICATION FILED 111N329, 1912.

1,098,867. Patented Apr. 21, 19m

2 SHEETS-SHEET 1.

fi 1/ my: 20 45 n H/ A;

T. K. LEGARE ADJUSTABLE GROWN TBMPLET APPLICATION TILED JUNE 29,1912.

Patented Apr. '21; 1914 2 SHEETS-SHEET 2.

43/ jfo 27 1 5 91% .Zggare.

lUNlTFlD STATES y A'FENT @FFXCE.

THOMAS KEITH LEGAIi-E, OF COLUMBIA, SOUTH CAROLINA.

eases? Specification of Letters Patent.

Paton ted Apr. 2i, i914.

Application filed June 29,1912. Serial No. 706,804.

To all whom, it may concern:

lo it known that I, THOMAS Knrrir Leeann, a citizen of the United States, residing at Columbia, Richland county, State of South Carolina, have invented certain new and useful Improvements in Adjust-able tlrownlemplets, of which the following is a specification.

This invention relates to road templets and has for its object the provision of a templet which may be conveniently used for the purpose of readily setting stakes to serve guides in forming the crown way.

It has been heretofore necessary in order to determine the surface of a roadway to have a surveyor set the stakes to show the elevations of the different parts of the roadway. This is comparatively slow and correspondingly expensive worlcand it is the object of this invention to provide a n'leans by which the foreman of a road construction gang or other person of ordinary skill may quickly and accurately set the stakes without the services of a surveyor.

The novel features of the invention will be apparent from the following description taken in connection with the accompanying drawings, in which:

Figure 1 is a side elevation of a templet embodying the invention. Fig. 2 is an enlarged section on the line 22 of Fig. 1. Fig. 3 is an enlarged side elevation of one of the gages. Fig. .4 is a transverse section ol. a roadway showing a templet extending from one curb to the other. Fig. 5 is a view similar to Fig. 4 and showing the use of a templct to span onehalf oi the distance between the curljls. Fig. 6 is a view similar to Fig. 4. and showing the use of two templets to span one-half the distance between the curbs.

Referring to the drawings the templet will be seen to comprise a horizontal beam to, which may be made of wood or any suitable metal, having mounted thereon a plurality of gages 11. l have shown and prefer to use live of the gages ll, but it will be an dersl'ood that any other suitable number in a y be employed. The gages-are preferably spaced apart equal distances and secured in suitable guides 12 arranged onthe beam 10. Cross pieces 13 and let are secured to the upper and lower ends of the guides and hold the gages in the guides, and serve as an index in connection with the scale'on the of the road-- gages hereinafter described. Each of the gages is provided with a longitudinal slot 15 extending the greater portion of the length thereof, andbolts 1e are arranged in the beam and pass through the slots in the gages and are provided with suitable washers 17 and nuts 18 whereby the gages may he clamped to the beam 10. Each of the gages carries a scale 19 which may be a standard metal scale divided into eighths, quarters and halves of an inch.

Referring to F i 4. the curbs of the road are shown at- (I, and a single templet is shown as extending from one curb to the other. As will be seen from F ig. 3 the scales extend upwardly from the lower ends of the gages and the height of the crown of the road above the level at the curb may be detQl'lIlillPrl by adjusting the end gages so that the lower edge of the beam 10 will be at the mark on the scale ll) which indicates the height of the center or crown of the road above the elevation at the curb.

In order to secure. accuracy the lemplel' may be provided with suitable spirit levels 20 adjacent the ends thereof whereby the beam 10 may be set in a perfectly level position.

In order to detcrn'line the heights oi": the roadway at points between the curb and the center the intermediate gages may be set so that the lower edge of the beam 10 registers with the propcr mark on the scale 19. llhcu the gages have been set to their proper posiliou the tcmplcl may be moved from one position to anol'h along the roadway and stakes driven to correspond with the lower ends of the gages. llllls obviating the necessity tor a surveyor to set each stake by means oi a surveying instrument.

In Fig. l") l have shown a tcmplet which extends from the curb to the center or crown o'lilhe road. Tlhi. arrangement designed For use in roads which are much wider than lhat shown in Fig. 4. in this case the gage 7) at the curb of the road is set to show the proper elevation of the crown above the level at the curb and the intermediate gages are set to indicate the proper curvature. lly this arrangement it is ')ossible to accurately detcrmine the surface of the roadway as the beam 10 may be leveled means of the spirit levels 20. y

In Fig. 6 I have shown. an arrangement for use on a. very wide road. in this arrangen'lent two templcts may be used and.

stalv'es setter one side of theroad ata tilneor tour temple s eoultl he used to span the whole \vidth oi the road. One end of one of the templets in this arrangement: is set at the vurh and the other end at a point one quarter of the distant-e at'l'oss the road. The seeond templet is arranged at the end of the first and oxtei'ids to the center of the road. Or, it desired one templet van he used in this arrangement For the entire operation by first setting the stake for one quarter of the roadway and then sin'iply (hanging the position of the gages and moving; the templet over to the next quarter. necessary to secure all points on any height of erown of any width oi roadway.

In order to render the use of the templots more convenient tables may be prepared showing); the various positions to whieh the gages should be set in order to give (litt'erent degreis of crowning to the road and with such tables it: is possible to quickly set the Thus only one templet is templetn and loeate the stakes tor a lone seetion of roadway.

illavingg' thus deserihed the invention what; is elaimeil is:

in a stake setting templet, the combinati n ot a beam, leveling means seeured thereon, a plurality ot' gages atljustahle in the same diteetion transversely of said heam. means on the. beam eonstituting an index for each of Sflit gages. measuring seales on each of said gages adapted to indicate mt relation of the ends thereof, on the same side 01". said beam, to said indexing means, and means forindependently securing each of said gages in (litlerent positions on said beam.

In testimony whereof 1 atlix my signature in presence of two witnesses.

THOMAS KEITH LEGARE. Witnesses:

C. G. COOPER,

D. F. FAULKENBERHY. 

